Exact federal listing answer
Is Monarch Diner on the National Register?
Yes · NPS status: Listed
Yes. Reference 03001207 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Monarch Diner as Listed in the National Register of Historic Places under reference 03001207.
Federal statusListed
National Register reference03001207
Listed dateNovember 28, 2003
Property categoryBuilding
Published address246 Appleton St.
LocalityLowell, Middlesex County, Massachusetts
Significance levelState, Local
Published acreage0.9
Exact answer boundaryThis confirms the named federal record only.
It does not prove that another address lies inside this property or district, establish local landmark status, decide preservation review, define a legal boundary, or describe ownership or current condition.
Why the wording is date-boundedThe answer reflects the NPS dataset published through May 22, 2026 and a live NPS GIS Listed-status cross-check made September 20, 2026. NPS notes that spatial points and polygons may need correction and are not legal documents.
Additional published fields
Areas of significance: ARCHITECTURE, COMMERCE.
Other published names: Four Sisters Owl Diner, Owl Diner, Worcester Lunch Car Company Diner #759.
Same locality
Other released Lowell records.
Each linked page answers a separate named federal record.